A fan-made widescreen remaster of Sonic 3 & Knuckles.
Sonic 3 Angel Island Revisited Nintendo Switch Port Downloads

This site contains download links for the Switch port of Sonic 3 A.I.R. For more information about the game, or links to the latest version if you are not using a modded Nintendo Switch, visit the official website for the game instead.


Before downloading, please make sure you have the Steam version of Sonic 3 & Knuckles installed on your computer. You will need to copy the ROM file from this version of the game to your Switch's SD card.


Installation Instructions

  1. Make sure your Switch can run homebrew.
  2. Extract the contents of the ZIP to the root of your SD card.
  3. Copy Sonic_Knuckles_wSonic3.bin to /switch/sonic3air on your Switch's SD card. After installing the Steam version, you should be able to find it in one of the following directories:
    • Windows: C:\Program Files (x86)\Steam\steamapps\common\Sega Classics\uncompressed ROMs\Sonic_Knuckles_wSonic3.bin
    • macOS: ~/Library/Application Support/Steam/steamapps/common/Sega Classics/uncompressed ROMs/Sonic_Knuckles_wSonic3.bin
    • Linux: ~/.steam/steam/steamapps/common/Sega Classics/uncompressed ROMs/Sonic_Knuckles_wSonic3.bin
    If you installed Sega Classics to a different location, you'll need to check manually.
  4. Start Sonic 3 AIR via hbmenu (or whatever method you prefer).

Update Instructions

Simply extract the new zip to the root of your SD card and overwrite any files. You won't lose saves or mods.

NOTE: It is recommended to give the game full RAM access. This means you shouldn't launch hbmenu from the album applet when running this. With the latest Atmosphere build and its default config, you can hold R while starting any game to open hbmenu with full RAM access. If you have any issues make sure the game has full RAM access before reporting them; launching as an applet will not be supported.

Mods can be placed at /switch/sonic3air/savedata/mods and activated in-game.
Spring Update 2021 - v21.05.08.0
Recommended download.

Download ZIP View Switch Changelog


Older Versions

v21.01.24.0 Beta